.page-faq {
  --faq-dot: 10px;
  padding-bottom: 8px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-block: 22px 2px;
}
.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}
.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan);
}
.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--rock-line);
}
.page-faq .breadcrumb li[aria-current="page"] {
  color: var(--bone);
}

/* ---------- 首屏 ---------- */
.page-faq .support-hero {
  position: relative;
  margin-top: 14px;
  padding: 30px 0 54px;
  border-bottom: 1px solid var(--rock-line);
  background-image:
    radial-gradient(120% 100% at 4% -12%, rgba(123, 44, 255, 0.2), transparent 62%),
    radial-gradient(80% 66% at 100% 0%, rgba(0, 229, 208, 0.12), transparent 58%);
  background-repeat: no-repeat;
}
.page-faq .support-hero__grid {
  display: grid;
  gap: 30px;
}
.page-faq .support-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-faq .support-hero__eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--cyan);
}
.page-faq .support-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--bone);
}
.page-faq .support-hero .lede {
  max-width: 56ch;
  margin: 18px 0 0;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.75;
}
.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .media-frame .media-frame__caption {
  margin: 10px 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .support-body {
  display: grid;
  gap: 38px;
  padding-top: 46px;
}
.page-faq .aside-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}
.page-faq .scene-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .scene-list a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--rock-line);
  background: var(--slate-panel);
  color: var(--mist);
  font-size: 0.8125rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.page-faq .scene-list a:hover,
.page-faq .scene-list a:focus-visible {
  color: var(--bone);
  border-color: var(--cyan);
  background: var(--slate-deep);
}
.page-faq .scene-dot {
  flex: none;
  width: var(--faq-dot);
  height: var(--faq-dot);
  background: var(--blue);
}
.page-faq .scene-dot--login { background: var(--blue); }
.page-faq .scene-dot--export { background: var(--violet); }
.page-faq .scene-dot--version { background: var(--cyan); }
.page-faq .scene-dot--security { background: var(--amber); }
.page-faq .scene-dot--other { background: var(--moss); }
.page-faq .aside-note {
  margin: 18px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--rock-line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 章节 ---------- */
.page-faq .chapter + .chapter {
  margin-top: 66px;
}
.page-faq .chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
}
.page-faq .chapter__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-faq .chapter__title {
  flex: 1 1 320px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 4.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--bone);
}
.page-faq .chapter__lede {
  max-width: 64ch;
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.75;
}
.page-faq .chapter__body {
  margin-top: 28px;
}

/* ---------- 两步流程 ---------- */
.page-faq .steps {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 4px 18px;
  padding-bottom: 26px;
}
.page-faq .step:last-child {
  padding-bottom: 0;
}
.page-faq .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 52px;
  bottom: 4px;
  width: 2px;
  background-image: repeating-linear-gradient(to bottom, var(--cyan) 0 6px, transparent 6px 12px);
  opacity: 0.45;
}
.page-faq .step__num {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--cyan);
  background: rgba(0, 229, 208, 0.08);
  border: 1px solid rgba(0, 229, 208, 0.48);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  position: relative;
  z-index: 1;
}
.page-faq .step__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--bone);
}
.page-faq .step__text {
  margin: 6px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 触发场景 ---------- */
.page-faq .trigger-intro {
  margin: 34px 0 16px;
  font-size: 0.9rem;
  color: var(--bone);
}
.page-faq .trigger-grid {
  display: grid;
  gap: 14px;
}
.page-faq .trigger-grid .card {
  border: 1px solid var(--rock-line);
  background: var(--slate-panel);
  transition: border-color 0.18s var(--ease);
}
.page-faq .trigger-grid .card:hover {
  border-color: var(--cyan);
}
.page-faq .trigger-grid .card__body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 五类场景分组 ---------- */
.page-faq .qa-group {
  margin-top: 36px;
}
.page-faq .qa-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rock-line);
}
.page-faq .qa-group__bar {
  flex: none;
  width: 4px;
  align-self: stretch;
  min-height: 24px;
  background: var(--scene, var(--blue));
  transition: width 0.18s var(--ease);
}
.page-faq .qa-group:hover .qa-group__bar {
  width: 9px;
}
.page-faq .qa-group__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--bone);
}
.page-faq .qa-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-faq .qa-group[data-scene="login"] { --scene: var(--blue); }
.page-faq .qa-group[data-scene="export"] { --scene: var(--violet); }
.page-faq .qa-group[data-scene="version"] { --scene: var(--cyan); }
.page-faq .qa-group[data-scene="security"] { --scene: var(--amber); }
.page-faq .qa-group[data-scene="other"] { --scene: var(--moss); }

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .foldable {
  border-bottom: 1px solid var(--rock-line);
  transition: background-color 0.18s var(--ease);
}
.page-faq .foldable[open] {
  background: rgba(20, 25, 34, 0.72);
}
.page-faq .foldable__trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 6px;
  cursor: pointer;
  list-style: none;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--bone);
  transition: color 0.18s var(--ease);
}
.page-faq .foldable__trigger::-webkit-details-marker {
  display: none;
}
.page-faq .foldable__trigger::before {
  content: "";
  flex: none;
  width: 4px;
  align-self: stretch;
  min-height: 20px;
  margin-top: 3px;
  background: var(--scene, var(--blue));
  transition: width 0.18s var(--ease);
}
.page-faq .foldable__trigger::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--cyan);
}
.page-faq .foldable[open] .foldable__trigger::after {
  content: "–";
}
.page-faq .foldable[open] .foldable__trigger::before {
  width: 9px;
}
.page-faq .foldable__trigger:hover,
.page-faq .foldable__trigger:focus-visible {
  color: var(--cyan);
}
.page-faq .foldable__body {
  padding: 0 6px 18px 22px;
  font-size: 0.885rem;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .foldable__body p {
  margin: 0 0 0.7em;
}
.page-faq .foldable__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 导出排查面板 ---------- */
.page-faq .check-panel {
  border: 1px solid var(--rock-line);
  border-left: 3px solid var(--amber);
  background: var(--slate-panel);
  padding: 4px 18px 8px;
}
.page-faq .check-panel .foldable {
  --scene: var(--amber);
}
.page-faq .qa-list--flush .foldable:last-child {
  border-bottom: 0;
}

/* ---------- 版本数据块 ---------- */
.page-faq .version-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 28px;
  background: var(--rock-line);
  border: 1px solid var(--rock-line);
}
.page-faq .version-facts .stat {
  display: grid;
  gap: 6px;
  padding: 18px 16px;
  background: var(--slate-panel);
}
.page-faq .version-facts .stat__value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-faq .version-facts .stat__key {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.page-faq .qa-list--indent .foldable {
  --scene: var(--moss);
}

/* ---------- 人工接手 ---------- */
.page-faq .escalate {
  display: grid;
  gap: 1px;
  background: var(--rock-line);
  border: 1px solid var(--rock-line);
  border-top: 3px solid var(--clay);
  padding: 1px;
}
.page-faq .escalate__card {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: 24px 20px;
  background: var(--slate-panel);
}
.page-faq .escalate__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}
.page-faq .escalate__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}
.page-faq .escalate__card .copy-tag {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  color: var(--cyan);
  background: rgba(0, 229, 208, 0.07);
  border: 1px solid rgba(0, 229, 208, 0.4);
  padding: 9px 14px;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-faq .escalate__card .copy-tag:hover,
.page-faq .escalate__card .copy-tag:focus-visible {
  background: rgba(0, 229, 208, 0.14);
  border-color: var(--cyan);
}
.page-faq .escalate__card .copy-status {
  font-size: 0.75rem;
  color: var(--moss);
  min-height: 1em;
}
.page-faq .escalate__note {
  margin: 20px 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
}
.page-faq .escalate__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, 0.35);
  transition: border-color 0.18s var(--ease);
}
.page-faq .escalate__note a:hover,
.page-faq .escalate__note a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .trigger-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .escalate__card {
    padding: 26px 26px;
  }
  .page-faq .version-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .support-hero {
    padding: 46px 0 66px;
  }
  .page-faq .support-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 48px;
  }
  .page-faq .support-body {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: 56px;
    padding-top: 58px;
  }
  .page-faq .aside-sticky {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }
  .page-faq .scene-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .scene-list a {
    width: 100%;
  }
  .page-faq .check-panel {
    padding: 6px 28px 10px;
  }
  .page-faq .foldable__trigger {
    padding: 17px 10px;
  }
  .page-faq .foldable__body {
    padding: 0 10px 20px 26px;
  }
}
<<<END>>>